Automatic nut-applying device



A.FAES'SEL. AUTOMATIC NUT APPLYING DEVICE.

APPLICATION FILED JAN-31,1920.

Patented Sept. '13, 1921.

3 SHEETS-SHEET].

Maw/asses A. FAESSEL.

AUTOMATIC NUT APPLYING DEVICE.

APPLICATION FILED JAN.3i, 1920.

mm ww m W f A. FAESSEL.

AUTOMATIC NUT APPLYING DEVICE- APPLYICATION Hugo 1AN.31. 1920.

1,390,351. e SeptL13,192L

3 SHEETS-SHEET 3.

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" citizen of the -United UNITED STATES PATEL! ALBERT FAEssEnoF CHICAGO, ILLINOIS, ASSIGNOR To CONTINENTAL BOLT- & IRON" v WORKS, or cHIoAG I LINo s, A coItroR 'rIo or LLINO S.

AUTOMATIC' NUT-APPLYING DEVICE.

To allv whom it may concern:

Be it known that I, ALBERT FAESSEL,. a States, residing at Chicago, in the county of Cook and State of Illinois, have'invented certain ful Improvements ing Devices, specification.

My invention relates to automatic machinin Automatic Nut-Applyery, and especially to a machine for applyin'g'nuts to bolts at the place of manufacture, thereby eliminating the manual appli-' cation of nuts to bolts.

In the manufacture of nuts and bolts, where the nuts and bolts are shipped in kegs and like containers, no satisfactory means have been devised for applying the nuts, to the bolts. For the most part the nuts are applied manually, which necessarily limits the output of the manufacturer to the number of bolts to which nuts can be applied manually during a day or other fixed period of time. I am aware that semi-automatic machines have been devised, but I am not aware that any machine has been devised Which applies nuts to bolts in such manner as notto make the human element a large factor in controlling the; application of nuts to bolts.

An Object of my invention is to provide an automatic machine forapplying nuts to bolts in such manner as to reduce the human element to a minimum.

Another object of my invention is to provide a machine for automatically applying nuts to bolts by spinning the nuts,-and in which the only manual operation necessary is the application of the threaded end of a bolt to a nut which is being spun, and the provision of means for automatically feeding the nuts to the splnning means. v

A furtherobjectis to provide a machine of such nature as to present a single nut for application .to a bolt, the nut having been delivered automatically in' such manner as to present it to the bolt, and the provision of means to screw the nut onto. the bolt.

A yet further object is to provide an automatic machine for feeding nuts in such man- 'ner that thesame'may be appliedto bolts. A still further object is the improvement of automatic machines for applyingnuts to bolts for successful commercial use. Generally speaking, I accomplish the obj 'cts of my n ion y p ovidi g a rotat Specification of Letters Patent.

new and use-,

of which the following is a- ,manner illustrated' ing table or turn-table and therein Patented Sept.13, 1921. Application filed January 31, 1920. "Serial No.'s55,4as.. v '1 a plurality of vertically disposed spindles, I

the upper ends of which are preferably flush with the upper surface 'oftheztable, and which ends are shapedto receive nutsof the particular size and shape desiredfIfurther provide means for feeding the. nuts in such manner as to deposit a, single .nut in every one of the spindles, then moving the'table in a step-by-tep movementQandl-"at a ..ce r'tain point in the travel thereof/spinning the spindles in such direction that, the threaded end of a bolt when applied" to a nut in said spinningspindlewill have the nut screwed thereon. v l

I attain the objects of my invention in the in the accompanying drawings and described and .claimedherein. In the. drawings I I i Figure 1 isatop plan viewfofthe ferred embodiment of my; invention;

F ig; 2 is a side elevational view of Fig. 1; ig. 3 is an enlarged sectional view of one of the spindles of my invention;

Fig. 4 is a plan viewof Fig- 3;"

l re- Fig. 5 is aplan View'partiallyi'n section showing details of construction, andIParticularly th position occupied byja spindle while being spun by' the b elt';.3 9-; Fig.6 is a vertical 'view partially insection showing the preferred. means for spinning the spindles; and 1 Fig. 7 is a vertical sectional viewof means for feeding nuts to thespindles.

Fig. a transversevertical section throughthe nut rece ving device; and

.Fig. Sis a vertical transversesection of 7 the nut receiving cup showing details of construction. I

In the drawings I provide a turntable. 10 which is carried in abench or table having supports 11, atop 12 which is provided with anaperture of a. size and shape't'o' receive.

' the turn table I OQ Cross 'braces 1 3 connect the legs 11 as a means for aflordingjadditional strength to thesupports. turn. table. 10' is carried'onafcentral bearing 14 mounted .on cross braces} 15of'thej frame;

work of "the apparatus and is'rotatedby a vertical shaft 16, the rotationbeing prefer to '..be' hereinafter described, jMount'ed at I suitable distancesfin the turn' t ;able,. prefera y nea the Pe h y he e f; ar s n s .sfer n -W e.v ieg ,n1 B ar ms e Fig 1 0 5 ably step' by-step and"'accomp1i,shed by means bolt,LI provide at therear cof thejtable a that is be accommodated.

placed and from which 3, a spindle includes a cylindrical portion 17 carried in a bushing 18 suitably secured in the turn table 10. Below the turn table 10 the portion 17 is enlarged at 19 and below a square or polygonal head 20. on the end of the reduced portion 17 by a screw 21 or other suitable securing means is a cup-shaped member 22, the size and shape of this cup member being such that a' single nut A is received in the cup and prevented from rotation with respect thereto. In the drawings the nut A shown as a square nut. To accommodate the. differ ence in thickness of the various nuts which may be ream the machine of my invention, 1. interpose a fillerfl23 which is secured in position by the screw 21, although it may be found desirable to have made cups ofvarious shapes and sizesto be readily applicable to he spindles to vreceive the many and-various nuts a manufa'cturer might make. The cup 22 is preferably slightly smaller in diameter than the opening 2a 1 in the upper surface of the turn table 10. It is of course understood that my apparatus is susceptible Mounted types of ofchangesjin form, proportion of parts and the like so that any size-or shape of .nut may Referring to Fig. 7,, I have shown therein one form o fvmeans for feeding nuts to the spindles. This form consists of a chute 25 suitably mounted by meansv of a support 26 on the top of :the table orappa-ratus of my invention. The chute is connected with a hopper (not shown) wherein the nuts are the same are fed in a-row as shown in Fig for delivery to the spindles o'f -my invention. The chute is so arranged that .the lowermost nut: indicated at 2.7 .in Fig. 7 will beengaged by the edge of the cup 22 of the-spindle; as the same is moved .into position at the-foot of the chute. The spring 28 cooperates with the end of the chute for guiding the nut into the cup of the spindle and at the same time serves to prevent .thenext nut29 from being delivered to the cup 22.- The details of the nut receiving device are more clearly shownvin Figs. 8 and 9 of the drawings; In this constructionthelupperend of the spindle 17 is slotted at-65 to receivea' horizontally disposed'key 63, which key interfitsin a groove ea .in the underside of the cup 22 for the purpose of rotatingthe-cup, with the spindle 17. The cup 22 is provided with an aperture 65. for

the passagezof-a screwor similar member-2:1 so that the cup and key. may

be suitably secured to .the spindle for rotation therewith. i 1 Y I For spinning. the spindles whereby the nut contained therein maybe applied toa ertic l haft 30 e rned in suitable bearings 31' in the frame'of theapparatus. Near the lower end of the shaft a pulley 32 is affixed to leave the pulleys 36 are being a pulley 3 f. onsha-ft35 suitably supported in the-apparatus. The upper end of this shaft 30 is provided with a pulley 36. At

vthe opposite rearcorner of the machine an- .other vertical shaft 37 is mounted which is similarto shaft 30and is carriedin similar bearings 31. The upper end of this shaft 1s provided with a pulley 38 and between pulwith which cooperates a belt 33 driven by the belt 39, they will be rotated at a speed dependent on the speed of the belt 39, Consequently the nut which is contained in the cup of the particular spindle being rotated, will be turned and a bolt applied to said nut will havethe nut screwed thereon. I

I It is an important'feature ofanyfinvention that the nut receiving cup 22' be guided into sucha position] that when the nut 27 is fed thereto bythe feeding device the cup will be in position toreceive' the nut. The form which I -have. shownin thedraw'ings for guidingthe spindles into nut receiving position includes a bracket 40 secured to the under side of the framework and which bracket has a rearwardly extending arm 41, the free end 42 of which arm is bent outwardly or toward the axis of theturn table, the bracket and its attachedfarm being positioned to engage the heads 20 ofthenut spindles and to move. and maintain thesame 1 chine is asecond shaft 46 carried in. bearings 4L? and which shaft is connected for rotation with the shaft 35 by means ofigeared pinions 48 and 1 9,the pinions being of. such size 7 as to drivetheshaft 46 at a predetermined relative speedwithlrespect'to shaft 35.. As before Stated Ithepulley QAis connectedby a belt33 tothfe verticalshaft 3O forthe purpose of spinning the nutspindles.

For imparting step-by-step rotation to the turn table 10; I, mount onthe vertical shaft 16 a'toothed member 50 below which is .piv-

oted-an arm 51 on the shaft 16: The arm 51 is provided with a pawl 52 adapted to engage themember 50; For turning the'arm 51 whereby the pawl is caused to engage successive teeth of the member 51, the opposite end of the arm 51 is connected by a link 53 to the upper end of a vertical movable rocker arm 54, which rocker is secured at its lower end by means of a bracket 55 to the framework of the apparatus. At a suitable point in the'length of the arm 55 there is provided a roller 56 andon the shaft 46 a cam 57 is secured by means of-a set screw 58 or other suitable means for contacting the roller 56in the arm 54. To'retain the arm 51 in retracted position, that is, the position shown in Fig. 1 of the drawing, and always in contact with the cam 57, a spring 59 is connected at one end to the arm'51 on the same side that the link 53 is connected, and

i at the other end is connected to the frame work of the apparatus in any desirableImanner. It willth'erefore be apparent that as the shafts 35 and 46 rotate the cam57 will impart reciprocatory motion'to the link 53. This in turn will cause the pawl 52 to move the member 50 and the fixed shaft '16 carrying the turn tablelO in step-by-step movement, the amountof movement being dependent on the arrangement of the teeth of the member 50 and the cam 57. The spring 59 acts to maintain the roller 56 incontact always with the cam 57. As a means for holding the turn table 10 in the'position to which such member has been turned by the intermittent driving mechanism before described, I form on the edges of the table a series of recesses 60 and in the framework of the machine I position a pawl or other member 61 which is maintainedv normally outwardly by means of'a spring 62, the arrangernent being such thatas the turn table 10 is moved the pawl 61 will engage the particular recess opposite the position of the pawl and therefore hold the turn table against rotative movement until acted on by'the proper mechanism to move the same another step or notch.

. It is believed that the operation of my invention is clear. However, I shall describe the operation thereof again. V

The apparatus having been put in motion by means of the application of power through belt 45t0 the pulley 44, the various parts are caused to move'as above described. As soon as the power is applied, the turn table will be moved in step-by-step movement, the spinning belt 39 caused to move and also the various parts of the apparatus to function. The nuts now being applied to the hopper are fed in a single column through the feeding mechanism as shown in Fig. 7, and discharged one by one into the cups 22 of the successive spindles, the turn table being stopped in such position that a cup 22 is ready to receive a nut. The nut bein prop y deli ered to the tap the nut screwed'thereon. The apparatusis so arranged that the feeding of the nuts may be regulated as to speed, and therefore the output of the apparatus depends largely 'on the speed ith which the attendant may apply bolts to the nuts being spun in the'par v After the nuts have been ticular spindles. removed the spindles are then *m oved into nut-receiving position and maintainedin this position by reason of engagement with the bracket 40 and the attached arm 4l,all j of which is clear from the drawings"- It will be noted that my. invention is of such nature that theonly manual operationnecessary is the application of a, bolt to"a' spinning nut. This therefore eliminates all chances of injury to the attendant and'itfacilitates the application of nuts to bolts many fold, as it is but a simple matter for an attendant to'apply'boltsjto the nuts being spunfand it is work which may successfully perform. 1

I have found in practice that myinvenunskilled labor tion increases the output many times and eliminates all. possibility of danger to the operator, and makes impossible the" inter- I vention of the human element to hamper the operation of the apparatus. While I have" described more or less preciselythe details of construction of my in vention, I do not wish to be understood as limiting myself thereto, as I contemplate changesin form and the proportion of'parts and substitution of equivalents as circumstances may suggest. or render expedient,

vention.

Without departing from 'the spirit of my in jI claim' zf g 1. In' an apparatus of the class described,

including means for receiving individual nuts, means for spinning said receiving means at a point remote from the nut 'receiving position, means-for moving said receiving means from receiving position to spinning the nuts.

2. In a device of the class described, in cluding in combination, a turn table, a nutreceiving spindle therein, means for feeding nuts to said spindle, means for turning said.

table, and means for spinning said spindle at a point remote from the nut feeding position. i

3. In adevice of the class described, including in combination, a turn table, a plurality of nut-receiving spindles carried thereby, means for imparting step-by-step movement to said table, means for feeding position, and means for. feeding gage said splndles for rotating the same at a point of 7 nuts to said spindles, and means for spinning certain of said spindles.

4. In a device. of the class described, in cluding incombination, a' turn table, a plurality of nut-receiving spindles carried thereby, means for imparting step-by-step movement to said table, means for "feeding nuts tosaid spindles, means for spinning certain of said spindles, and means for turning said spindles into nut-receiving position.

I 5. 1m a device of the class described, including in combination, a turn table,a plurality of nut-receiving spindles carried thereby, means for imparting step-by-step movement to said table, means for "feeding nuts to said spindles, means for spinning certain of said spindles, and means for guiding said spindles into nut-receiving position.

6. In a device of the class described, in cluding in combination, a turn table, a plurality of nut-receiving spindles carried thereby, means for imparting step-byestep movement to said table, means for feeding nuts to said spindles, and means for rotating said spindles, said means including a belt adapted to engage said spindles at certain positions in the travel of the table.

7. In a device of the class described, including in combination, a turn table, a plurality of nut-receiving spindles carried thereby, means for imparting stepeby-step movement to said table, means for feeding nuts to said spindles, said spindles having a cylindrical portion, and means for spin ning certain of said spindles including a horizontally disposed belt adapted to encylindrical portion 01? said.

engagement distant from the nut-receiving position oi said spindles. g V

8. In a device of the class described, in-- cluding in combination, a turn table, a plurality of nut-receiving, spindles carried thereby, means for imparting step-by-step movement to saidtable, means for feeding nuts to said spindles, said spindles having a cylindrical portion, means for spinning certain of said spindles including a horizontally disposed belt adapted to engage said cylindrical portion of said spindles forrotating the same at a point of engagement distant from the nutreceiving positionotf said spindles, and means for guiding said spindles into nut-receiving position after. leaving the splnning position.

means remote from said feeding position for V rotating said spindles, means for guiding said spindles into nut-resolving position after leaving said spinning position, and

means for causing said several means to function. e '10. Ina device of the class described, ineluding a rotating table, a plurality of vertically disposed spindles therein, a cup for recelvlng a nut in,.the upper end of said spindles flush with the table, means for feeding nuts to said cups whereby a single nut may be deposited .in a cup, means for imparting step-by-step rotation to said table whereby said cups are presented successively vto the nut feeding means, and means {or rotating one of saidspindlesduring the interval, the table is -at rest, and

means for guiding the spindle about to receive a nut into position to receive said nut.

11. In a device of the class described, in combination, a bodily movable and rotatable cup adapted to receive a nut, means tor feeding nuts to said cup, meansfor spinning said cup, and means for supporting said cup in feeding and spinning positions.

12. In a deviceo-tthe class described, in combination a bodily movable and rotatable cup adapted to receive a nut, means for feeding nutswto saidcu-p, means for spinning said cup, means for supporting said cup in feeding and spinningipositions, and means for moving said cup from -feeding to spinning position. V

13. ln a device of'the class described, in combination, means for; feeding nuts singly, means for receiving a nut from said feeding means, means for horizontallymoving said receiving means from nut receiving. position, and means for spinning said nut re ceiving means in the latter position.

Signed at Chicago, Illin0is', this 26 day of January, 1920. I

ALBERT F'AESSEL. 

